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99 Tahoe 5.7 - One corroding spark plug

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Old Feb 16, 2011 | 4:28 PM
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kwalsh's Avatar
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Default 99 Tahoe 5.7 - One corroding spark plug

Anyone have an idea why one of the sparkplugs on my Tahoe keeps getting corroded? Is it a bad valve or fuel injector? Thanks for the help.
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Old Jun 27, 2011 | 4:20 PM
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go to this site it will help you.

Spark Plug Diagnosis
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